import pandas as pd
import plotly.express as px

a=[[1,2,3,4,5,6],[6,7,8,9,10,11]]
b=pd.DataFrame(a).T

b

	0	1
0	1	6
1	2	7
2	3	8
3	4	9
4	5	10
5	6	11

px.line(b,x=0,y=1)